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What is the naming convention in Python for variable and function names?
... C# background the naming convention for variables and method names are usually either camelCase or PascalCase:
13 Answers
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How do you divide each element in a list by an int?
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The way you tried first is actually directly possible with numpy:
import numpy
myArray = numpy.array([10,20,30,40,50,60,70,80,90])
myInt = 10
newArray = myArray/myInt
If you do such operations with long lists and especially in any sort of scientific com...
FIND_IN_SET() vs IN()
...FROM orders
CROSS JOIN
(
SELECT 1 AS pos
UNION ALL
SELECT 2 AS pos
UNION ALL
SELECT 3 AS pos
UNION ALL
SELECT 4 AS pos
UNION ALL
SELECT 5 AS pos
) q
JOIN company
ON companyID = CAST(NULLIF(SUBSTRI...
How to convert the ^M linebreak to 'normal' linebreak in a file opened in vim?
...rl-M> means type Ctrl+V then Ctrl+M.
Explanation
:%s
substitute, % = all lines
<Ctrl-V><Ctrl-M>
^M characters (the Ctrl-V is a Vim way of writing the Ctrl ^ character and Ctrl-M writes the M after the regular expression, resulting to ^M special character)
/\r/
with new line (\r)
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How to use my view helpers in my ActionMailer views?
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I thought these were supposed to be automatically included in Rails 4? guides.rubyonrails.org/…
– gabeodess
Jan 28 '15 at 22:21
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How do I compare two string variables in an 'if' statement in Bash? [duplicate]
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@Sangimed, [ is a command (actually, an alternate name for the command called test); if you run which [, you'll see there's actually an executable file for it on disk (even though the shell may provide a built-in implementation as a performance optimizatio...
Get a list of all git commits, including the 'lost' ones
...of a branch, it's rather like finding a needle in a haystack. You can find all the commits that don't appear to be referenced any more- git fsck --unreachable will do this for you- but that will include commits that you threw away after a git commit --amend, old commits on branches that you rebased ...
What is the --save option for npm install?
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Update npm 5:
As of npm 5.0.0, installed modules are added as a dependency by default, so the --save option is no longer needed. The other save options still exist and are listed in the documentation for npm install.
Original answer:
Before version 5, NPM si...
#import using angle brackets < > and quote marks “ ”
I'm wondering what decides whether you're allowed to use <Header.h> or "Header.h" when you're importing files in Objective-C. So far my observation has been that you use the quote marks "" for files in your project that you've got the implementation source to, and angle brackets <>...
Java using enum with switch statement
...ting from the integer to the type-safe enum. Java will not do it automatically. There's a couple of ways you can go about this:
Use a list of static final ints rather than a type-safe enum and switch on the int value you receive (this is the pre-Java 5 approach)
Switch on either a specified id v...